java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/hopv/lia/mochi/mc91_95.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:49:51,883 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:49:51,885 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:49:51,896 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:49:51,896 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:49:51,897 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:49:51,898 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:49:51,902 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:49:51,904 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:49:51,905 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:49:51,905 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:49:51,906 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:49:51,906 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:49:51,907 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:49:51,915 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:49:51,916 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:49:51,917 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:49:51,919 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:49:51,920 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:49:51,923 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:49:51,924 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:49:51,926 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-06-22 01:49:51,937 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:49:51,959 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:49:51,960 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:49:51,960 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:49:51,960 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:49:51,961 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:49:51,962 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:49:51,962 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:49:51,962 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:49:51,962 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:49:51,962 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:49:51,963 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:49:51,963 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:49:51,964 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:49:51,964 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:49:51,964 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:49:51,964 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:49:51,964 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:49:51,966 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:49:51,966 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:49:52,032 INFO ]: Repository-Root is: /tmp [2018-06-22 01:49:52,051 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:49:52,057 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:49:52,059 INFO ]: Initializing SmtParser... [2018-06-22 01:49:52,059 INFO ]: SmtParser initialized [2018-06-22 01:49:52,060 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/mc91_95.smt2 [2018-06-22 01:49:52,061 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 01:49:52,172 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/mc91_95.smt2 unknown [2018-06-22 01:49:52,342 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/mc91_95.smt2 [2018-06-22 01:49:52,348 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:49:52,354 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:49:52,354 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:49:52,354 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:49:52,357 INFO ]: ChcToBoogie initialized [2018-06-22 01:49:52,362 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:49:52" (1/1) ... [2018-06-22 01:49:52,426 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:49:52 Unit [2018-06-22 01:49:52,426 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:49:52,427 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:49:52,428 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:49:52,428 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:49:52,446 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:49:52" (1/1) ... [2018-06-22 01:49:52,446 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:49:52" (1/1) ... [2018-06-22 01:49:52,450 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:49:52" (1/1) ... [2018-06-22 01:49:52,450 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:49:52" (1/1) ... [2018-06-22 01:49:52,453 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:49:52" (1/1) ... [2018-06-22 01:49:52,454 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:49:52" (1/1) ... [2018-06-22 01:49:52,455 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:49:52" (1/1) ... [2018-06-22 01:49:52,456 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:49:52,457 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:49:52,457 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:49:52,457 INFO ]: RCFGBuilder initialized [2018-06-22 01:49:52,458 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:49:52" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:49:52,474 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:49:52,474 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:49:52,474 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:49:52,474 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:49:52,474 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:49:52,474 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 01:49:52,725 INFO ]: Using library mode [2018-06-22 01:49:52,726 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:49:52 BoogieIcfgContainer [2018-06-22 01:49:52,734 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:49:52,735 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:49:52,735 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:49:52,739 INFO ]: TraceAbstraction initialized [2018-06-22 01:49:52,739 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:49:52" (1/3) ... [2018-06-22 01:49:52,740 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334b7b37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:49:52, skipping insertion in model container [2018-06-22 01:49:52,740 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:49:52" (2/3) ... [2018-06-22 01:49:52,740 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334b7b37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:49:52, skipping insertion in model container [2018-06-22 01:49:52,740 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:49:52" (3/3) ... [2018-06-22 01:49:52,750 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:49:52,769 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:49:52,783 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:49:52,834 INFO ]: Using default assertion order modulation [2018-06-22 01:49:52,835 INFO ]: Interprodecural is true [2018-06-22 01:49:52,835 INFO ]: Hoare is false [2018-06-22 01:49:52,835 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:49:52,835 INFO ]: Backedges is TWOTRACK [2018-06-22 01:49:52,835 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:49:52,835 INFO ]: Difference is false [2018-06-22 01:49:52,835 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:49:52,835 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:49:52,849 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 01:49:52,859 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 01:49:52,860 INFO ]: Found error trace [2018-06-22 01:49:52,861 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:49:52,862 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:49:52,868 INFO ]: Analyzing trace with hash 81548513, now seen corresponding path program 1 times [2018-06-22 01:49:52,869 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:49:52,870 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:49:52,903 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:49:52,903 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:49:52,903 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:49:52,934 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:49:53,018 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:49:53,025 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:49:53,025 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:49:53,027 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:49:53,044 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:49:53,044 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:49:53,047 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 01:49:53,218 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:49:53,219 INFO ]: Finished difference Result 19 states and 23 transitions. [2018-06-22 01:49:53,220 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:49:53,221 INFO ]: Start accepts. Automaton has 4 states. Word has length 7 [2018-06-22 01:49:53,222 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:49:53,238 INFO ]: With dead ends: 19 [2018-06-22 01:49:53,238 INFO ]: Without dead ends: 19 [2018-06-22 01:49:53,244 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:49:53,259 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 01:49:53,284 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-22 01:49:53,286 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-22 01:49:53,287 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2018-06-22 01:49:53,289 INFO ]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 7 [2018-06-22 01:49:53,290 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:49:53,290 INFO ]: Abstraction has 19 states and 23 transitions. [2018-06-22 01:49:53,290 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:49:53,291 INFO ]: Start isEmpty. Operand 19 states and 23 transitions. [2018-06-22 01:49:53,293 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 01:49:53,293 INFO ]: Found error trace [2018-06-22 01:49:53,293 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:49:53,293 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:49:53,294 INFO ]: Analyzing trace with hash -1717249689, now seen corresponding path program 1 times [2018-06-22 01:49:53,294 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:49:53,294 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:49:53,295 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:49:53,295 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:49:53,295 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:49:53,306 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:49:53,338 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:49:53,338 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:49:53,338 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 01:49:53,340 INFO ]: Interpolant automaton has 3 states [2018-06-22 01:49:53,340 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 01:49:53,340 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 01:49:53,340 INFO ]: Start difference. First operand 19 states and 23 transitions. Second operand 3 states. [2018-06-22 01:49:53,355 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:49:53,355 INFO ]: Finished difference Result 25 states and 31 transitions. [2018-06-22 01:49:53,356 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 01:49:53,356 INFO ]: Start accepts. Automaton has 3 states. Word has length 8 [2018-06-22 01:49:53,356 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:49:53,357 INFO ]: With dead ends: 25 [2018-06-22 01:49:53,357 INFO ]: Without dead ends: 25 [2018-06-22 01:49:53,358 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 01:49:53,358 INFO ]: Start minimizeSevpa. Operand 25 states. [2018-06-22 01:49:53,364 INFO ]: Finished minimizeSevpa. Reduced states from 25 to 21. [2018-06-22 01:49:53,364 INFO ]: Start removeUnreachable. Operand 21 states. [2018-06-22 01:49:53,365 INFO ]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2018-06-22 01:49:53,365 INFO ]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 8 [2018-06-22 01:49:53,366 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:49:53,366 INFO ]: Abstraction has 21 states and 25 transitions. [2018-06-22 01:49:53,366 INFO ]: Interpolant automaton has 3 states. [2018-06-22 01:49:53,366 INFO ]: Start isEmpty. Operand 21 states and 25 transitions. [2018-06-22 01:49:53,367 INFO ]: Finished isEmpty. Found accepting run of length 17 [2018-06-22 01:49:53,367 INFO ]: Found error trace [2018-06-22 01:49:53,367 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:49:53,367 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:49:53,368 INFO ]: Analyzing trace with hash 1775420528, now seen corresponding path program 1 times [2018-06-22 01:49:53,368 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:49:53,368 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:49:53,368 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:49:53,368 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:49:53,368 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:49:53,386 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:49:53,641 INFO ]: Checked inductivity of 7 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 01:49:53,641 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:49:53,641 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:49:53,648 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:49:53,692 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:49:53,703 INFO ]: Computing forward predicates... [2018-06-22 01:49:53,866 INFO ]: Checked inductivity of 7 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 01:49:53,907 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:49:53,907 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-06-22 01:49:53,907 INFO ]: Interpolant automaton has 9 states [2018-06-22 01:49:53,907 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 01:49:53,907 INFO ]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-06-22 01:49:53,908 INFO ]: Start difference. First operand 21 states and 25 transitions. Second operand 9 states. [2018-06-22 01:49:54,265 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:49:54,265 INFO ]: Finished difference Result 38 states and 54 transitions. [2018-06-22 01:49:54,265 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 01:49:54,265 INFO ]: Start accepts. Automaton has 9 states. Word has length 16 [2018-06-22 01:49:54,265 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:49:54,268 INFO ]: With dead ends: 38 [2018-06-22 01:49:54,268 INFO ]: Without dead ends: 38 [2018-06-22 01:49:54,269 INFO ]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-06-22 01:49:54,269 INFO ]: Start minimizeSevpa. Operand 38 states. [2018-06-22 01:49:54,278 INFO ]: Finished minimizeSevpa. Reduced states from 38 to 30. [2018-06-22 01:49:54,278 INFO ]: Start removeUnreachable. Operand 30 states. [2018-06-22 01:49:54,280 INFO ]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2018-06-22 01:49:54,280 INFO ]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 16 [2018-06-22 01:49:54,280 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:49:54,280 INFO ]: Abstraction has 30 states and 40 transitions. [2018-06-22 01:49:54,280 INFO ]: Interpolant automaton has 9 states. [2018-06-22 01:49:54,280 INFO ]: Start isEmpty. Operand 30 states and 40 transitions. [2018-06-22 01:49:54,282 INFO ]: Finished isEmpty. Found accepting run of length 25 [2018-06-22 01:49:54,282 INFO ]: Found error trace [2018-06-22 01:49:54,282 INFO ]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2018-06-22 01:49:54,282 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:49:54,282 INFO ]: Analyzing trace with hash -1507535111, now seen corresponding path program 2 times [2018-06-22 01:49:54,282 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:49:54,282 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:49:54,283 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:49:54,283 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:49:54,283 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:49:54,305 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:49:54,683 INFO ]: Checked inductivity of 24 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 01:49:54,683 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:49:54,683 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:49:54,691 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 01:49:54,731 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 01:49:54,731 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:49:54,735 INFO ]: Computing forward predicates... [2018-06-22 01:49:55,489 INFO ]: Checked inductivity of 24 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 01:49:55,510 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:49:55,510 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 20 [2018-06-22 01:49:55,511 INFO ]: Interpolant automaton has 20 states [2018-06-22 01:49:55,511 INFO ]: Constructing interpolant automaton starting with 20 interpolants. [2018-06-22 01:49:55,511 INFO ]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2018-06-22 01:49:55,511 INFO ]: Start difference. First operand 30 states and 40 transitions. Second operand 20 states. [2018-06-22 01:49:58,299 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:49:58,299 INFO ]: Finished difference Result 113 states and 208 transitions. [2018-06-22 01:49:58,300 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-06-22 01:49:58,300 INFO ]: Start accepts. Automaton has 20 states. Word has length 24 [2018-06-22 01:49:58,300 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:49:58,304 INFO ]: With dead ends: 113 [2018-06-22 01:49:58,304 INFO ]: Without dead ends: 85 [2018-06-22 01:49:58,307 INFO ]: 0 DeclaredPredicates, 109 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1761 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=911, Invalid=5409, Unknown=0, NotChecked=0, Total=6320 [2018-06-22 01:49:58,307 INFO ]: Start minimizeSevpa. Operand 85 states. [2018-06-22 01:49:58,325 INFO ]: Finished minimizeSevpa. Reduced states from 85 to 44. [2018-06-22 01:49:58,326 INFO ]: Start removeUnreachable. Operand 44 states. [2018-06-22 01:49:58,327 INFO ]: Finished removeUnreachable. Reduced from 44 states to 44 states and 64 transitions. [2018-06-22 01:49:58,327 INFO ]: Start accepts. Automaton has 44 states and 64 transitions. Word has length 24 [2018-06-22 01:49:58,328 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:49:58,328 INFO ]: Abstraction has 44 states and 64 transitions. [2018-06-22 01:49:58,328 INFO ]: Interpolant automaton has 20 states. [2018-06-22 01:49:58,328 INFO ]: Start isEmpty. Operand 44 states and 64 transitions. [2018-06-22 01:49:58,329 INFO ]: Finished isEmpty. Found accepting run of length 25 [2018-06-22 01:49:58,329 INFO ]: Found error trace [2018-06-22 01:49:58,329 INFO ]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2018-06-22 01:49:58,330 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:49:58,330 INFO ]: Analyzing trace with hash -984770951, now seen corresponding path program 3 times [2018-06-22 01:49:58,330 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:49:58,330 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:49:58,331 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:49:58,331 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 01:49:58,331 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:49:58,347 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:49:58,582 INFO ]: Checked inductivity of 24 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-06-22 01:49:58,582 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:49:58,582 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-06-22 01:49:58,601 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:49:58,622 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-22 01:49:58,622 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:49:58,625 INFO ]: Computing forward predicates... [2018-06-22 01:49:58,659 INFO ]: Checked inductivity of 24 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-06-22 01:49:58,680 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:49:58,680 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2018-06-22 01:49:58,680 INFO ]: Interpolant automaton has 12 states [2018-06-22 01:49:58,680 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 01:49:58,680 INFO ]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-06-22 01:49:58,681 INFO ]: Start difference. First operand 44 states and 64 transitions. Second operand 12 states. [2018-06-22 01:49:58,879 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:49:58,879 INFO ]: Finished difference Result 76 states and 117 transitions. [2018-06-22 01:49:58,880 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 01:49:58,880 INFO ]: Start accepts. Automaton has 12 states. Word has length 24 [2018-06-22 01:49:58,880 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:49:58,882 INFO ]: With dead ends: 76 [2018-06-22 01:49:58,882 INFO ]: Without dead ends: 76 [2018-06-22 01:49:58,882 INFO ]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2018-06-22 01:49:58,883 INFO ]: Start minimizeSevpa. Operand 76 states. [2018-06-22 01:49:58,893 INFO ]: Finished minimizeSevpa. Reduced states from 76 to 48. [2018-06-22 01:49:58,893 INFO ]: Start removeUnreachable. Operand 48 states. [2018-06-22 01:49:58,895 INFO ]: Finished removeUnreachable. Reduced from 48 states to 48 states and 74 transitions. [2018-06-22 01:49:58,895 INFO ]: Start accepts. Automaton has 48 states and 74 transitions. Word has length 24 [2018-06-22 01:49:58,895 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:49:58,895 INFO ]: Abstraction has 48 states and 74 transitions. [2018-06-22 01:49:58,895 INFO ]: Interpolant automaton has 12 states. [2018-06-22 01:49:58,895 INFO ]: Start isEmpty. Operand 48 states and 74 transitions. [2018-06-22 01:49:58,898 INFO ]: Finished isEmpty. Found accepting run of length 33 [2018-06-22 01:49:58,898 INFO ]: Found error trace [2018-06-22 01:49:58,898 INFO ]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2018-06-22 01:49:58,898 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:49:58,898 INFO ]: Analyzing trace with hash 1614696322, now seen corresponding path program 4 times [2018-06-22 01:49:58,898 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:49:58,898 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:49:58,899 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:49:58,899 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 01:49:58,899 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:49:58,924 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:49:59,119 INFO ]: Checked inductivity of 51 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-06-22 01:49:59,119 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:49:59,119 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:49:59,125 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 01:49:59,160 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 01:49:59,160 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:49:59,163 INFO ]: Computing forward predicates... [2018-06-22 01:49:59,239 INFO ]: Checked inductivity of 51 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-06-22 01:49:59,267 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:49:59,267 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2018-06-22 01:49:59,268 INFO ]: Interpolant automaton has 15 states [2018-06-22 01:49:59,268 INFO ]: Constructing interpolant automaton starting with 15 interpolants. [2018-06-22 01:49:59,268 INFO ]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2018-06-22 01:49:59,268 INFO ]: Start difference. First operand 48 states and 74 transitions. Second operand 15 states. [2018-06-22 01:49:59,441 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:49:59,442 INFO ]: Finished difference Result 86 states and 133 transitions. [2018-06-22 01:49:59,443 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-06-22 01:49:59,443 INFO ]: Start accepts. Automaton has 15 states. Word has length 32 [2018-06-22 01:49:59,443 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:49:59,445 INFO ]: With dead ends: 86 [2018-06-22 01:49:59,445 INFO ]: Without dead ends: 86 [2018-06-22 01:49:59,446 INFO ]: 0 DeclaredPredicates, 56 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2018-06-22 01:49:59,446 INFO ]: Start minimizeSevpa. Operand 86 states. [2018-06-22 01:49:59,457 INFO ]: Finished minimizeSevpa. Reduced states from 86 to 54. [2018-06-22 01:49:59,457 INFO ]: Start removeUnreachable. Operand 54 states. [2018-06-22 01:49:59,459 INFO ]: Finished removeUnreachable. Reduced from 54 states to 54 states and 86 transitions. [2018-06-22 01:49:59,459 INFO ]: Start accepts. Automaton has 54 states and 86 transitions. Word has length 32 [2018-06-22 01:49:59,459 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:49:59,459 INFO ]: Abstraction has 54 states and 86 transitions. [2018-06-22 01:49:59,459 INFO ]: Interpolant automaton has 15 states. [2018-06-22 01:49:59,459 INFO ]: Start isEmpty. Operand 54 states and 86 transitions. [2018-06-22 01:49:59,463 INFO ]: Finished isEmpty. Found accepting run of length 41 [2018-06-22 01:49:59,463 INFO ]: Found error trace [2018-06-22 01:49:59,464 INFO ]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2018-06-22 01:49:59,464 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:49:59,464 INFO ]: Analyzing trace with hash -1244794997, now seen corresponding path program 5 times [2018-06-22 01:49:59,464 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:49:59,464 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:49:59,465 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:49:59,465 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 01:49:59,465 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:49:59,491 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:49:59,647 INFO ]: Checked inductivity of 88 backedges. 8 proven. 42 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-06-22 01:49:59,647 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:49:59,647 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-06-22 01:49:59,666 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:49:59,709 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-06-22 01:49:59,709 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:49:59,712 INFO ]: Computing forward predicates... [2018-06-22 01:49:59,756 INFO ]: Checked inductivity of 88 backedges. 8 proven. 42 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-06-22 01:49:59,776 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:49:59,776 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2018-06-22 01:49:59,776 INFO ]: Interpolant automaton has 18 states [2018-06-22 01:49:59,777 INFO ]: Constructing interpolant automaton starting with 18 interpolants. [2018-06-22 01:49:59,777 INFO ]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2018-06-22 01:49:59,777 INFO ]: Start difference. First operand 54 states and 86 transitions. Second operand 18 states. [2018-06-22 01:50:00,045 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:50:00,046 INFO ]: Finished difference Result 96 states and 149 transitions. [2018-06-22 01:50:00,048 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-06-22 01:50:00,048 INFO ]: Start accepts. Automaton has 18 states. Word has length 40 [2018-06-22 01:50:00,048 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:50:00,050 INFO ]: With dead ends: 96 [2018-06-22 01:50:00,050 INFO ]: Without dead ends: 96 [2018-06-22 01:50:00,050 INFO ]: 0 DeclaredPredicates, 71 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=157, Invalid=545, Unknown=0, NotChecked=0, Total=702 [2018-06-22 01:50:00,050 INFO ]: Start minimizeSevpa. Operand 96 states. [2018-06-22 01:50:00,062 INFO ]: Finished minimizeSevpa. Reduced states from 96 to 60. [2018-06-22 01:50:00,062 INFO ]: Start removeUnreachable. Operand 60 states. [2018-06-22 01:50:00,064 INFO ]: Finished removeUnreachable. Reduced from 60 states to 60 states and 98 transitions. [2018-06-22 01:50:00,064 INFO ]: Start accepts. Automaton has 60 states and 98 transitions. Word has length 40 [2018-06-22 01:50:00,065 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:50:00,065 INFO ]: Abstraction has 60 states and 98 transitions. [2018-06-22 01:50:00,065 INFO ]: Interpolant automaton has 18 states. [2018-06-22 01:50:00,065 INFO ]: Start isEmpty. Operand 60 states and 98 transitions. [2018-06-22 01:50:00,069 INFO ]: Finished isEmpty. Found accepting run of length 41 [2018-06-22 01:50:00,069 INFO ]: Found error trace [2018-06-22 01:50:00,069 INFO ]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2018-06-22 01:50:00,069 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:50:00,070 INFO ]: Analyzing trace with hash -720097269, now seen corresponding path program 6 times [2018-06-22 01:50:00,070 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:50:00,070 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:50:00,070 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:00,070 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 01:50:00,070 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:00,086 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:00,260 INFO ]: Checked inductivity of 88 backedges. 23 proven. 36 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-06-22 01:50:00,260 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:50:00,260 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:50:00,267 INFO ]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-06-22 01:50:00,336 INFO ]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2018-06-22 01:50:00,336 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:00,339 INFO ]: Computing forward predicates... [2018-06-22 01:50:00,708 INFO ]: Checked inductivity of 88 backedges. 14 proven. 42 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-06-22 01:50:00,728 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:50:00,728 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 32 [2018-06-22 01:50:00,729 INFO ]: Interpolant automaton has 32 states [2018-06-22 01:50:00,729 INFO ]: Constructing interpolant automaton starting with 32 interpolants. [2018-06-22 01:50:00,729 INFO ]: CoverageRelationStatistics Valid=113, Invalid=879, Unknown=0, NotChecked=0, Total=992 [2018-06-22 01:50:00,729 INFO ]: Start difference. First operand 60 states and 98 transitions. Second operand 32 states. [2018-06-22 01:50:04,769 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:50:04,769 INFO ]: Finished difference Result 163 states and 319 transitions. [2018-06-22 01:50:04,770 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-06-22 01:50:04,770 INFO ]: Start accepts. Automaton has 32 states. Word has length 40 [2018-06-22 01:50:04,770 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:50:04,774 INFO ]: With dead ends: 163 [2018-06-22 01:50:04,774 INFO ]: Without dead ends: 163 [2018-06-22 01:50:04,777 INFO ]: 0 DeclaredPredicates, 165 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3661 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1927, Invalid=11183, Unknown=0, NotChecked=0, Total=13110 [2018-06-22 01:50:04,777 INFO ]: Start minimizeSevpa. Operand 163 states. [2018-06-22 01:50:04,816 INFO ]: Finished minimizeSevpa. Reduced states from 163 to 80. [2018-06-22 01:50:04,816 INFO ]: Start removeUnreachable. Operand 80 states. [2018-06-22 01:50:04,819 INFO ]: Finished removeUnreachable. Reduced from 80 states to 80 states and 136 transitions. [2018-06-22 01:50:04,819 INFO ]: Start accepts. Automaton has 80 states and 136 transitions. Word has length 40 [2018-06-22 01:50:04,819 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:50:04,819 INFO ]: Abstraction has 80 states and 136 transitions. [2018-06-22 01:50:04,819 INFO ]: Interpolant automaton has 32 states. [2018-06-22 01:50:04,819 INFO ]: Start isEmpty. Operand 80 states and 136 transitions. [2018-06-22 01:50:04,824 INFO ]: Finished isEmpty. Found accepting run of length 49 [2018-06-22 01:50:04,825 INFO ]: Found error trace [2018-06-22 01:50:04,825 INFO ]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2018-06-22 01:50:04,825 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:50:04,825 INFO ]: Analyzing trace with hash 136672916, now seen corresponding path program 7 times [2018-06-22 01:50:04,825 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:50:04,825 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:50:04,826 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:04,826 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 01:50:04,826 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:04,843 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:05,061 INFO ]: Checked inductivity of 135 backedges. 10 proven. 65 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-06-22 01:50:05,062 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:50:05,062 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:50:05,068 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:50:05,119 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:05,123 INFO ]: Computing forward predicates... [2018-06-22 01:50:05,339 INFO ]: Checked inductivity of 135 backedges. 10 proven. 65 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-06-22 01:50:05,372 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:50:05,372 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 21 [2018-06-22 01:50:05,373 INFO ]: Interpolant automaton has 21 states [2018-06-22 01:50:05,373 INFO ]: Constructing interpolant automaton starting with 21 interpolants. [2018-06-22 01:50:05,373 INFO ]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2018-06-22 01:50:05,373 INFO ]: Start difference. First operand 80 states and 136 transitions. Second operand 21 states. [2018-06-22 01:50:06,148 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:50:06,148 INFO ]: Finished difference Result 136 states and 225 transitions. [2018-06-22 01:50:06,154 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-06-22 01:50:06,154 INFO ]: Start accepts. Automaton has 21 states. Word has length 48 [2018-06-22 01:50:06,154 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:50:06,157 INFO ]: With dead ends: 136 [2018-06-22 01:50:06,157 INFO ]: Without dead ends: 136 [2018-06-22 01:50:06,158 INFO ]: 0 DeclaredPredicates, 87 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=225, Invalid=831, Unknown=0, NotChecked=0, Total=1056 [2018-06-22 01:50:06,162 INFO ]: Start minimizeSevpa. Operand 136 states. [2018-06-22 01:50:06,179 INFO ]: Finished minimizeSevpa. Reduced states from 136 to 80. [2018-06-22 01:50:06,179 INFO ]: Start removeUnreachable. Operand 80 states. [2018-06-22 01:50:06,181 INFO ]: Finished removeUnreachable. Reduced from 80 states to 80 states and 136 transitions. [2018-06-22 01:50:06,181 INFO ]: Start accepts. Automaton has 80 states and 136 transitions. Word has length 48 [2018-06-22 01:50:06,182 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:50:06,182 INFO ]: Abstraction has 80 states and 136 transitions. [2018-06-22 01:50:06,182 INFO ]: Interpolant automaton has 21 states. [2018-06-22 01:50:06,182 INFO ]: Start isEmpty. Operand 80 states and 136 transitions. [2018-06-22 01:50:06,186 INFO ]: Finished isEmpty. Found accepting run of length 57 [2018-06-22 01:50:06,186 INFO ]: Found error trace [2018-06-22 01:50:06,186 INFO ]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1] [2018-06-22 01:50:06,186 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:50:06,187 INFO ]: Analyzing trace with hash 1617814685, now seen corresponding path program 8 times [2018-06-22 01:50:06,187 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:50:06,187 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:50:06,187 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:06,187 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:50:06,187 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:06,210 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:06,597 INFO ]: Checked inductivity of 192 backedges. 12 proven. 93 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-06-22 01:50:06,597 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:50:06,597 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:50:06,615 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 01:50:06,668 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 01:50:06,668 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:06,679 INFO ]: Computing forward predicates... [2018-06-22 01:50:07,190 INFO ]: Checked inductivity of 192 backedges. 12 proven. 93 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-06-22 01:50:07,218 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:50:07,218 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 25 [2018-06-22 01:50:07,219 INFO ]: Interpolant automaton has 25 states [2018-06-22 01:50:07,219 INFO ]: Constructing interpolant automaton starting with 25 interpolants. [2018-06-22 01:50:07,219 INFO ]: CoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2018-06-22 01:50:07,219 INFO ]: Start difference. First operand 80 states and 136 transitions. Second operand 25 states. [2018-06-22 01:50:07,666 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:50:07,667 INFO ]: Finished difference Result 146 states and 241 transitions. [2018-06-22 01:50:07,667 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-06-22 01:50:07,667 INFO ]: Start accepts. Automaton has 25 states. Word has length 56 [2018-06-22 01:50:07,667 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:50:07,669 INFO ]: With dead ends: 146 [2018-06-22 01:50:07,669 INFO ]: Without dead ends: 146 [2018-06-22 01:50:07,669 INFO ]: 0 DeclaredPredicates, 102 GetRequests, 53 SyntacticMatches, 12 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=320, Invalid=1162, Unknown=0, NotChecked=0, Total=1482 [2018-06-22 01:50:07,670 INFO ]: Start minimizeSevpa. Operand 146 states. [2018-06-22 01:50:07,686 INFO ]: Finished minimizeSevpa. Reduced states from 146 to 86. [2018-06-22 01:50:07,686 INFO ]: Start removeUnreachable. Operand 86 states. [2018-06-22 01:50:07,692 INFO ]: Finished removeUnreachable. Reduced from 86 states to 86 states and 148 transitions. [2018-06-22 01:50:07,692 INFO ]: Start accepts. Automaton has 86 states and 148 transitions. Word has length 56 [2018-06-22 01:50:07,693 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:50:07,693 INFO ]: Abstraction has 86 states and 148 transitions. [2018-06-22 01:50:07,693 INFO ]: Interpolant automaton has 25 states. [2018-06-22 01:50:07,693 INFO ]: Start isEmpty. Operand 86 states and 148 transitions. [2018-06-22 01:50:07,705 INFO ]: Finished isEmpty. Found accepting run of length 73 [2018-06-22 01:50:07,705 INFO ]: Found error trace [2018-06-22 01:50:07,705 INFO ]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1] [2018-06-22 01:50:07,705 INFO ]: === Iteration 11 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:50:07,705 INFO ]: Analyzing trace with hash -1936083409, now seen corresponding path program 9 times [2018-06-22 01:50:07,705 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:50:07,705 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:50:07,706 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:07,706 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 01:50:07,706 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:07,738 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:08,239 INFO ]: Checked inductivity of 336 backedges. 47 proven. 154 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-06-22 01:50:08,239 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:50:08,239 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:50:08,245 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 01:50:08,329 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-06-22 01:50:08,330 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:08,335 INFO ]: Computing forward predicates... [2018-06-22 01:50:08,876 INFO ]: Checked inductivity of 336 backedges. 111 proven. 32 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2018-06-22 01:50:08,896 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:50:08,896 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 9] total 35 [2018-06-22 01:50:08,896 INFO ]: Interpolant automaton has 35 states [2018-06-22 01:50:08,896 INFO ]: Constructing interpolant automaton starting with 35 interpolants. [2018-06-22 01:50:08,897 INFO ]: CoverageRelationStatistics Valid=130, Invalid=1060, Unknown=0, NotChecked=0, Total=1190 [2018-06-22 01:50:08,897 INFO ]: Start difference. First operand 86 states and 148 transitions. Second operand 35 states. [2018-06-22 01:50:10,597 WARN ]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-06-22 01:50:13,123 WARN ]: Spent 210.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2018-06-22 01:50:14,157 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:50:14,157 INFO ]: Finished difference Result 135 states and 202 transitions. [2018-06-22 01:50:14,157 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2018-06-22 01:50:14,157 INFO ]: Start accepts. Automaton has 35 states. Word has length 72 [2018-06-22 01:50:14,158 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:50:14,158 INFO ]: With dead ends: 135 [2018-06-22 01:50:14,158 INFO ]: Without dead ends: 0 [2018-06-22 01:50:14,161 INFO ]: 0 DeclaredPredicates, 211 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5460 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=2762, Invalid=15060, Unknown=0, NotChecked=0, Total=17822 [2018-06-22 01:50:14,162 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:50:14,162 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:50:14,162 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:50:14,162 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:50:14,162 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2018-06-22 01:50:14,162 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:50:14,162 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:50:14,162 INFO ]: Interpolant automaton has 35 states. [2018-06-22 01:50:14,162 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:50:14,162 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:50:14,165 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:50:14 BoogieIcfgContainer [2018-06-22 01:50:14,166 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:50:14,166 INFO ]: Toolchain (without parser) took 21817.82 ms. Allocated memory was 309.3 MB in the beginning and 483.9 MB in the end (delta: 174.6 MB). Free memory was 266.9 MB in the beginning and 335.1 MB in the end (delta: -68.2 MB). Peak memory consumption was 106.4 MB. Max. memory is 3.6 GB. [2018-06-22 01:50:14,167 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 309.3 MB. Free memory is still 275.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:50:14,167 INFO ]: ChcToBoogie took 72.66 ms. Allocated memory is still 309.3 MB. Free memory was 265.9 MB in the beginning and 263.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:50:14,168 INFO ]: Boogie Preprocessor took 28.85 ms. Allocated memory is still 309.3 MB. Free memory was 263.9 MB in the beginning and 262.9 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 01:50:14,168 INFO ]: RCFGBuilder took 276.91 ms. Allocated memory is still 309.3 MB. Free memory was 262.9 MB in the beginning and 255.9 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:50:14,169 INFO ]: TraceAbstraction took 21430.55 ms. Allocated memory was 309.3 MB in the beginning and 483.9 MB in the end (delta: 174.6 MB). Free memory was 255.9 MB in the beginning and 335.1 MB in the end (delta: -79.2 MB). Peak memory consumption was 95.4 MB. Max. memory is 3.6 GB. [2018-06-22 01:50:14,172 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 309.3 MB. Free memory is still 275.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 72.66 ms. Allocated memory is still 309.3 MB. Free memory was 265.9 MB in the beginning and 263.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 28.85 ms. Allocated memory is still 309.3 MB. Free memory was 263.9 MB in the beginning and 262.9 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 276.91 ms. Allocated memory is still 309.3 MB. Free memory was 262.9 MB in the beginning and 255.9 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 21430.55 ms. Allocated memory was 309.3 MB in the beginning and 483.9 MB in the end (delta: 174.6 MB). Free memory was 255.9 MB in the beginning and 335.1 MB in the end (delta: -79.2 MB). Peak memory consumption was 95.4 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 13 locations, 1 error locations. SAFE Result, 21.3s OverallTime, 11 OverallIterations, 9 TraceHistogramMax, 14.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 128 SDtfs, 238 SDslu, 990 SDs, 0 SdLazy, 4276 SolverSat, 1172 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 876 GetRequests, 399 SyntacticMatches, 12 SemanticMatches, 465 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11538 ImplicationChecksByTransitivity, 13.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 348 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 719 NumberOfCodeBlocks, 715 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 699 ConstructedInterpolants, 0 QuantifiedInterpolants, 105312 SizeOfPredicates, 148 NumberOfNonLiveVariables, 1406 ConjunctsInSsa, 311 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 1130/1890 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/mc91_95.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-50-14-183.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/mc91_95.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-50-14-183.csv Received shutdown request...